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Wind Speed Formula:
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The wind speed calculation using the coefficient of drag at 10-m reference level provides an estimation of wind speed based on wind stress and drag coefficient. This is particularly useful in meteorology, oceanography, and environmental engineering studies.
The calculator uses the formula:
Where:
Explanation: The formula calculates wind speed by taking the square root of the ratio between wind stress and drag coefficient at the 10-meter reference level.
Details: Accurate wind speed estimation is crucial for weather forecasting, climate studies, marine navigation, and designing structures that need to withstand wind forces.
Tips: Enter wind stress in Pascal and coefficient of drag value. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is wind stress?
A: Wind stress is the shear stress exerted by the wind on the surface of large bodies of water, which influences ocean currents and wave formation.
Q2: What is the typical range for drag coefficient at 10m reference level?
A: The drag coefficient typically ranges from 0.001 to 0.0025 over open ocean, but can vary significantly depending on sea state and wind conditions.
Q3: Why is 10 meters used as a reference level?
A: 10 meters is a standard reference height in meteorology for wind measurements as it represents a height where surface effects are minimized while still being practical for measurement.
Q4: What are the limitations of this calculation?
A: This calculation assumes neutral atmospheric stability and may not be accurate in conditions with strong thermal stratification or complex terrain.
Q5: How is this calculation used in practical applications?
A: It's used in weather prediction models, ocean circulation studies, and for estimating wind forces on marine structures and vessels.